Chevrolet ENCLAVE - NAVIGATION SYSTEM 2008 Specifications download pdf (Page 355)

(C) Aspect Ratio: A two-digit number that

indicates the tire height-to-width measurements.

For example, if the tire size aspect ratio is

60, as shown in item C of the illustration,

it would mean that the tire’s sidewall is

60 percent as high as it is wide.

(D) Construction Code

: A letter code is used

to indicate the type of ply construction in the tire.

The letter R means radial ply construction; the

letter D means diagonal or bias ply construction;

and the letter B means belted-bias ply

construction.

(E) Rim Diameter

: Diameter of the wheel in

inches.

(F) Service Description

: These characters

represent the load range and speed rating of the

tire. The load index represents the load carry

capacity a tire is certiﬁed to carry. The load index

can range from 1 to 279. The speed rating is the

maximum speed a tire is certiﬁed to carry a load.

Speed ratings range from A to Z.

Tire Terminology and Deﬁnitions

Air Pressure: The amount of air inside the

tire pressing outward on each square inch of

the tire. Air pressure is expressed in pounds

per square inch (psi) or kilopascal (kPa).

Accessory Weight

: This means the combined

weight of optional accessories. Some examples of

optional accessories are, automatic transmission,

power steering, power brakes, power windows,

power seats, and air conditioning.

Aspect Ratio

: The relationship of a tire’s height

to its width.

Belt

: A rubber coated layer of cords that is

located between the plies and the tread. Cords

may be made from steel or other reinforcing

materials.

Bead

: The tire bead contains steel wires wrapped

by steel cords that hold the tire onto the rim.

Bias Ply Tire

: A pneumatic tire in which the plies

are laid at alternate angles less than 90 degrees

to the centerline of the tread.

5-55

1 ... 354 355 356 ... 460

Comments to this Manuals

No comments